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White and Color Noise Cancellation using Adaptive Feedback Cross-Coupled Line Enhancer Filter

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1 Author(s)
Said, A.F. ; Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ

In this paper, a new method for white and color noise cancellation is presented. The proposed method consists of two adaptive FIR filters, where the output of each filter is feedback to the input of the other filter to form an adaptive feedback cross-coupled filter. The step-size parameter of each FIR filters is variable and based on power normalization techniques. The power normalization step is greatly improve the performance of the proposed filter and gives extra output SNR improvements compared to the existing methods. Illustrative examples are given in this paper to show the performance of the proposed method in removing white, color, or both white and color noises at very different input signal to noise ratios (SNRs).

Published in:

Signal Processing and Information Technology, 2008. ISSPIT 2008. IEEE International Symposium on

Date of Conference:

16-19 Dec. 2008